Question

3. Why leaves are considered as food factories of the plant?
4. Rhizobium bacteria and leguminous plant help each other in survival. What is this relationship known as?
5. What name is given to the relationship between an alga and fungus in lichens?​

Answer 1

Answer:

1)Leaves are called the food factory of the plant because it makes food by the process of photosynthesis with the help of raw materials like water and carbon-dioxide using sunlight and chlorophyll.

2)The Rhizobium bacteria and leguminous plant help each other in survival. What is this relationship known as? This positive relationship is known as SYMBIOSIS or MUTUALISM wherein both the organisms are equally benefited. It is also known as give and take relationship.

3)The mutual relationship between fungus and algae in Lichens is known as symbiosis relationship. Explanation: In Symbiosis relationship the blue or green algae live among the filaments of the fungus where it forms lichens